v3.26.1
Note 9 - Share-based Payments (Details Textual) - USD ($)
3 Months Ended
Mar. 28, 2026
Mar. 29, 2025
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period 19,000 0
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Expirations in Period 0 45,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period 2,750 0
Stock Repurchased During Period, Shares 671 0
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number 1,046,050 1,083,300
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price $ 2.49 $ 2.45
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted-Average Remaining Contractual Term 6 years 9 months 18 days 7 years 7 months 6 days
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number 680,475 581,900
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price $ 2.47 $ 2.37
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted-Average Remaining Contractual Term 6 years 3 months 18 days 6 years 8 months 12 days
The 2020 Equity Incentive Plan [Member]    
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized 1,500,000  
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares) 418,370  
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount $ 418,000  
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition 1 year 9 months 21 days  
Share-Based Payment Arrangement, Expense $ 48 $ 122
Employees [Member] | The 2020 Equity Incentive Plan [Member]    
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Net of Forfeitures (in shares) 0 115,000
Outside Directors [Member] | The 2020 Equity Incentive Plan [Member]    
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Net of Forfeitures (in shares) 0 75,000